• Journal of the Korean Society of Safety
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• v.22 no.4
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• pp.7-12
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• 2007

In order to evaluate the integrity of Zr-2.5Nb pressure tubes, probabilistic fracture mechanics(PFM) approach was employed. Failure assessment diagram(FAD), plastic collapses, and critical crack lengths(CCL) were used for evaluating the failure probability as failure criteria. The Kr-FAD as failure assessment diagram was used because fracture of pressure tubes occurred in brittle manner due to hydrogen embrittlement of material by deuterium fluence. The probabilistic integrity evaluation observed AECL procedures and used fracture toughness parameters of EPRI and recently announced theory. In conclusion, the probabilistic approach using the Kr-FAD made it possible to determine major failure criterion in the pressure tube integrity evaluation.

• Journal of the Korean Society of Propulsion Engineers
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• v.2 no.2
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• pp.108-117
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• 1998

Testing and evaluation was carried out to certify quality assurance of localized engine parts using accelerated mission test method, which has been used to verify qualification or substantiation of the developed engine, improved engine components and engineering changed parts since 1976. Because AMT is not a familiarized testing for quality assurance of engine and localized engine parts in korea, through this testing and evaluation, it is presented the concepts, test procedures and evaluation method of AMT and is proposed the possibility of execution AMT, as a tool for qualification or substantiation test of a development engine or components.

• Journal of Korean Society of Transportation
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• v.14 no.1
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• pp.165-177
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• 1996

Recently, many local governments suffering from traffic congestion have plans to introduce light weight (mid-size) rail transit systems, since the systems' investment costs are known to be much less than heavy rail transits such as the subway in Seoul. Most of the governments expect private partners to be involved in the systems' constructions and operations mainly because of their financial difficulties. Since the governments do not have experiences of evaluating and selecting privately financed transportation systems, they may need an evaluation guideline. This paper discusses evaluation criteria, methodologies, and procedures which will be helpful to local governments faced with evaluating light weight rail transit systems proposed by private companies.

• Journal of the Korean Society for Precision Engineering
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• v.30 no.5
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• pp.467-473
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• 2013

Diverse approaches for reducing the total energy consumption of machine tools have been introduced and developed, to cope with rapid increase of total energy costs in world-wide manufacturing industries. To realize the improvement of the energy efficiency, systematic and integrated strategies must be considered, including energy-saving design, optimized control operation and concrete evaluation of the energy efficiency. This paper proposes key enabling technologies required to improve the energy efficiency of 5-axis multi-functional machining tools, considering both of system design and operation in the real production environments. Related standardized procedures of the energy efficiency evaluation is also represented.

• Journal of the Korean Society for Precision Engineering
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• v.30 no.5
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• pp.461-466
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• 2013

In this paper, main mechanism and measurement method of energy consumption for machine tools are investigated by experiment and simulation. To evaluate total energy consumption of the machine tools, standard test workpiece and measuring method and test procedures are suggested. And, improvement of energy consumption evaluation by the motion kinematics theory is used. In addition, to estimate energy consumption of machine tools in design process, mass distribution of the structure and 5 axis motions are investigated and simulated by numerical analysis.

• Proceedings of the KIEE Conference
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• summer
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• pp.639-641
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• 2004

This paper presents the evaluaton procedures and the estimation model for DSM Potential by stage on residential sector in Korea. In general, the evaluation process of the potential savings for DSM measures or programs consists of baseline electricity consumption forecast and potential evaluation such as maximum technical potential(MTP), phased-in technical potential(PTP), economic potential (EP), and achievable potential(AP). The purpose of this paper is to establish the evaluation process of those DSM potential for residential sector.

• Proceedings of the KIEE Conference
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• 1997.11a
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• pp.221-223
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• 1997

This paper presents the Simplified Simulation Technique that evaluates the adequacy of an electric power system using only a portion of the outage period instead of each hour. Reliability evaluation may be performed at various hierarchical levels, generation, transmission and distribution system. The Simplified Simulation Technique simplifies the adequacy evaluation process reducing the number of calculations considerably. Therefore the computation time can be significantly reduced. This paper is done to compare the results of the simulation model with the Simplified Simulation Technique against the results of the simulation model without the Simplified Simulation Technique. The reliability indices such as the Loss of Load Probability(LOLP), the loss of load frequency(LOLF), the average duration of load curtailment(DLC) and the average demand of load curtailment(ADLC) are calculated. The proposed methods and procedures are tested by using the IEEE-RTS with 24-bus system.

• Journal of the Korean Society of Clothing and Textiles
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• v.12 no.2 s.27
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• pp.145-158
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• 1988

The purpose of this study was develop a skirt pattern drafting method for pregnant women on the basis of their physical characteristics. The study procedures and results were as follows; 1. One hundred and one women who were 7,8 or 9 months pregnant were measured on 29 items. The result was computed to obtain descriptive statistics and correlation coefficients between each items. 2. Two new skirt patterns were developed based on the data analysis. 3. The sensory evaluation was applied to evaluate the new patterns for pregnant women by comparing them with the Japanese MOONHWA method skirt pattern for pregnant women. Sensory evaluation for appearance: According to the result of Mann-Whitney test among the three skills the skirt A was most satisfactory, and the next was the skirt B followed by Japanese MOONHWA method Skirt. Sensory evaluation for comfort; The result of Mann-Whitney test showed that the skirt B was comfortable, and the next was the shirt A followed by Japanese MOONHWA method skirt.

• Asia-Pacific Journal of Business
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• v.1 no.2
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• pp.1-21
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• 2010

A good brand name is very important for the success of a product. A thoughtful brand name can convey information that can influence potential customers in a positive way. Thus marketers often formulate brand names intended to explicitly or implicitly play a role in influencing customer perceptions. One way of doing this is to have a brand name bearing connotations to a foreign country. In general, prior research on country-of-origin effects has not adequately focused on exploring brand name connotation and its effect on product evaluation. This research presents a conceptual framework for determining if/how brand name connotation to a foreign country affects product evaluation. Specifically, this paper reviews relevant literature pertaining to country-of-origin and brand name connotation, discusses a conceptualization, proposes research hypotheses, and outlines procedures for collecting data to evaluate the proposed hypotheses.

• Progress in Superconductivity and Cryogenics
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• v.13 no.4
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• pp.14-17
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• 2011

The evaluation of the electromechanical properties of HTS CC tapes is one of the foremost procedures to be done to ensure the applicability of superconducting wires to electric devices. A precise measurement of the stress and strain is important in deriving the mechanical properties under operating environment. Up to now, there is no standard test method yet for the electromechanical property evaluation of HTS tapes under self field and external magnetic field although there are already reports on the different devices used to evaluate these properties. Strain can be measured by adopting a strain gauge or a high resolution double extensometer. In this study, strain effect on $I_c$ in HTS CC tapes under magnetic fields was evaluated. Comparison of advantages and setback of strain measuring devices were discussed. In addition, a dual strain measurement system using both the SG and extensometer may be practical to lessen the burden in case one of the measuring devices does not work well.